There are many good telephone message greetings that sound both warm and professional. In general, a good telephone message greeting need only be energetic and clear.
It's important to let those calling know whose phone they have reached. Avoiding identifying oneself is only confusing for the caller, and some think this shows a lack of respect for the caller. For those who are hesitant to give both their first and last name on a personal voice mail box greeting, even a first name is better than no name.
It's a good idea to be energetic in the greeting, but not necessarily creative. Trying to be funny or clever sometimes makes the wrong impression on the caller.